Secondary Air Injection Pump Issue

My 2012 Toyota Tacoma Pre-Runner 2WD is throwing a code for Secondary Air Injection Pump Stuck Closed in Bank 1. I have changed the pump and it’s still having the same problem; I have no clue if it’s related but a week before the air pump code popped up, I had a code for misfire cylinder 1 so I changed all spark plugs and coils. Please help, thank y’all!!

 

Assuming you mean P2441 (Secondary Air Switching Valve Stuck Closed)?

That has to the with the switching valve not the pump.
In all likelihood the valve has failed, pretty common on '12 models with the 4.0L

You need a bi-directional scan tool to run tests on the SAIS.